BAC-120063CW-ZEC FlexStat
3
Installation and Configuration Guide, Rev. G
Output
Terminals
Typical
Terminal
Codes
RTU Output Connections
(1 or 2 H and 1 or 2 C)
BACnet
Objects
Analog 9
O. A. Damper (Optional)
AO9
GND
Ground
(for Analog Output terminals 7–9)
Analog 8
Heat or Cool Valve (Optional)
AO8
Analog 7
Static Pressure Setpoint (Optional)
AO7
Relay 6
O. A. Damper (Optional)
BO6
SC 4–6
RH/R
24 VAC (for Relay terminals 4–6)
Relay 5
W2
Heat 2 (Optional)
BO5
Relay 4
W1
Heat 1
BO4
Relay 3
Y2
Cool 2 (Optional)
BO3
SC 1–3
RC/R
24 VAC (for Relay terminals 1–3)
Relay 2
Y1
Cool 1
BO2
Relay 1
G
Fan
BO1
NOTE:
Connections above are for firmware R2.0.0.4 and later. Earlier
firmware had the optional static pressure setpoint on Analog Output
9
instead of Analog Output
7
, and it did not have the heating/cooling
coil valve option (Analog Output 8) or outside air damper (economizer)
option (Analog Output 9 or Relay 6).
Input
Terminals
RTU Input Connections
BACnet
Objects
IN9
Static Pressure Feedback (Optional)
AI9
IN8
(Unused in this application)
AI8
IN7
(Unused in this application)
AI7
IN4
(Unused in this application)
AI4
IN3
(Unused in this application)
AI3
GND
Ground
IN2
DAT
*
AI2
*NOTE:
The DAT sensor is configured for IN2 in the ADVANCED >
APPLICATION > ADDITIONAL SETUP > SENSORS menu.
NOTE: Although typical terminal code letters are
shown, check the schematics of your unit
for wiring details!
CAUTION
Relays are for Class-2 voltages (24 VAC) only. Do not
connect line voltage to the relays!
Do not mistakenly connect 24 VAC to an analog
output ground.
Roof Top Unit (RTU)
APPLICATION
DEGREES SCALE: °F
APP:
OPT: 1H/1C
ADDITIONAL SETUP
ZONE
ROOF TOP
(1 or 2 Heat and 1 or 2 Cool)
Illustration 3—RTU Application Connections
From
Previous
Network
Device
Optional Network
To
Next
Network
Device
RTU
Terminals
IF BOTH RC AND RH TERMINALS ARE PRESENT:
WIRE RC TO SC 1-3 AND RH TO SC 4-6.
IF ONLY ONE “R” TERMINAL IS PRESENT:
WIRE BOTH SC 1-3 AND SC 4-6 TO R.
XEE-6111-050 or XEE-6112-50 Transformer
STE-140x Duct Sensor, Type III
TERMINALS
Optional Static Pressure Reading/Setpoint from/to CSP-4702
AO7
IN9
GND
Optional Heating/Cooling Coil Valve
GND
AO8
Optional Outside Air Damper
GND or SC
AO9 or Relay 6
